Interdental cleaning tool

Abstract

An interdental cleaning tool that achieves both easy insertion between teeth and improved cleaning effect is provided. The interdental cleaning tool 1 includes a base material portion 10 including a base section 11 and a shaft section 12 extending from the base section 11, and a soft portion 20 covering at least a part of the shaft section 12. The at least the part of the shaft section 12 has a first outer dimension X 1 defined in a first direction D 1 and a second outer dimension X 2, defined in a second direction D 3 perpendicular to the first direction D 1 and smaller than the first outer dimension X 1, in a cross section of the shaft section 12 perpendicular to an axial direction of the shaft section 12.

1 . An interdental cleaning tool comprising:
 a base material portion including a base section and a shaft section extending from the base section; and   a soft portion covering at least a part of the shaft section, wherein   the at least the part of the shaft section has a first outer dimension defined in a first direction and a second outer dimension, defined in a second direction perpendicular to the first direction and smaller than the first outer dimension, in a cross section of the shaft section perpendicular to an axial direction of the shaft section.   
     
     
         2 . The interdental cleaning tool according to  claim 1 , wherein the first outer dimension is defined in a direction parallel to a plane extending along the base section. 
     
     
         3 . The interdental cleaning tool according to  claim 1 , wherein the first outer dimension and the second outer dimension have a ratio (second outer dimension/first outer dimension) of 0.20 to 0.98. 
     
     
         4 . The interdental cleaning tool according to  claim 1 , wherein the second outer dimension is 1.0 mm or more. 
     
     
         5 . The interdental cleaning tool according to  claim 1 , wherein the soft portion has a length, which is defined in an axial direction of the shaft section, of 15 mm or more. 
     
     
         6 . The interdental cleaning tool according to  claim 1 , wherein the first outer dimension and the second outer dimension have a ratio (second outer dimension/first outer dimension) gradually increasing from a distal end section toward the base section of the shaft section.